arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1605.09596math.DG
收藏

Hitchin表示的极小曲面

Minimal surfaces for Hitchin representations

Song Dai, Qiongling Li

摘要:

给定约化表示$ρ: π_1(S)\rightarrow G$,存在从固定Riemann曲面$Σ$的通用覆盖到与$G$关联的对称空间$G/K$的$ρ$ -等变调和映射$f$。如果$f$的Hopf微分为零,则调和映射是极小的。本文研究了对称空间中Hitchin分支的子轨迹所对应的浸入极小曲面的性质:$q_n$和$q_{n-1}$情形.首先,我们证明了极小曲面的拉回度量在同一共形类中优于双曲度量的常数倍,并具有强刚性性质。其次,我们证明了浸入极小曲面在对称空间内永远不与任何平面相切。作为直接推论,极小曲面的拉回度量总是严格负曲的。最后,我们找到一个完全解耦的系统来近似耦合Hitchin系统。

英文摘要:

Given a reductive representation $ρ: π_1(S)\rightarrow G$, there exists a $ρ$-equivariant harmonic map $f$ from the universal cover of a fixed Riemann surface $Σ$ to the symmetric space $G/K$ associated to $G$. If the Hopf differential of $f$ vanishes, the harmonic map is then minimal. In this paper, we investigate the properties of immersed minimal surfaces inside symmetric space associated to a subloci of Hitchin component: $q_n$ and $q_{n-1}$ case. First, we show that the pullback metric of the minimal surface dominates a constant multiple of the hyperbolic metric in the same conformal class and has a strong rigidity property. Secondly, we show that the immersed minimal surface is never tangential to any flat inside the symmetric space. As a direct corollary, the pullback metric of the minimal surface is always strictly negatively curved. In the end, we find a fully decoupled system to approximate the coupled Hitchin system.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑